Insulated Hollow Wood Beam for Fast Modular Building Assembly

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Solution Overview

Problem

Existing modular construction systems are complex, expensive, require extensive finishing work, lack structural strength, and do not provide adequate thermal insulation.

Innovation Solution

A construction module with a quadrangular cross-section comprising wooden side planks enclosing a longitudinal cavity filled with insulating polymer and reinforced by wooden elements, featuring installation pipes and coupling mechanisms for easy assembly and integration of electrical and plumbing systems.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If a lego type wall panel system with temperature control function is used, then thermal insulation is improved, but device complexity and manufacturing cost increase significantly

Engineering Contradiction:

Improvethermal insulationVSAvoidsystem complexity

Core Design Contradiction:

TemperatureVSDevice complexity

Solution Approach 1:

The patent combines thermal insulation, structural support, and installation access into a single integrated beam element. The longitudinal cavity within the beam structure houses insulation material and installation pipes simultaneously, eliminating the need for separate insulation panels and access systems, thus reducing overall device complexity while maintaining thermal insulation performance

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The beam structure serves multiple functions: it provides structural support, thermal insulation through the longitudinal cavity, and access for installation pipes. This multi-functional design eliminates the need for separate dedicated components for each function, reducing system complexity and manufacturing cost

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Ease of operation

If modular chipboard beams with styrofoam elements are used, then ease of assembly is improved, but structural strength deteriorates

Engineering Contradiction:

Improveease of assemblyVSAvoidstructural strength

Core Design Contradiction:

Ease of operationVSStrength

Solution Approach 1:

The patent uses composite construction with wooden side planks providing structural strength and a longitudinal cavity filled with insulating material providing insulation. This composite design maintains structural integrity while enabling easy assembly through standardized coupling elements, overcoming the weakness of purely foam-based modular systems

Inventive Principle:

Principle #40Composite materials

3Strength

If beams of solid wood with relief couplings are used, then structural strength is improved, but weight and manufacturing difficulty increase

Engineering Contradiction:

Improvestructural strengthVSAvoidbeam weight

Core Design Contradiction:

StrengthVSWeight of moving object

Solution Approach 1:

The beam is segmented into side planks forming a hollow structure with a longitudinal cavity, rather than using solid wood throughout. This segmentation reduces weight while maintaining structural strength through the distributed framework of side planks and reinforcing elements, and facilitates easier manufacturing compared to monolithic solid wood beams

Inventive Principle:

Principle #1Segmentation

4Ease of manufacture

If existing modular systems require extensive finishing work, then manufacturing simplicity is improved, but productivity deteriorates due to additional work steps

Engineering Contradiction:

Improvemanufacturing simplicityVSAvoidconstruction speed

Core Design Contradiction:

Ease of manufactureVSProductivity

Solution Approach 1:

The beam is manufactured with the longitudinal cavity and installation pipes pre-integrated during the primary manufacturing process, rather than requiring post-assembly modifications. This preliminary integration of installation access eliminates subsequent finishing work steps, maintaining manufacturing simplicity while significantly improving construction productivity

Inventive Principle:

Principle #10Preliminary action

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The system is cost-effective, easy to assemble, provides high thermal insulation, and structural strength, allowing buildings to withstand significant impacts while eliminating the need for extensive finishing work.

Implementation Method 1

The cavity of the beam is filled with insulating polymer material with good adhesion to wood

Methodology Applied

Scientific EffectThermal insulation: Thermal Insulation

Data Source

PatentEP4667672A1Construction module for constructing a building, system with such a module, method for producing such a module and method for constructing a building with such a module

Publication Date: 2025.12.24 LATINKA 165 EOOD

Figure 1A~1C
Figure 2A~2B
Figure 3A~3B

AI summary

The construction module according to the invention is used to construct a building, providing a cheap and easy assembly process. The construction module is a beam with a quadrangular cross-section, which has four long sides and two short sides, two of the opposite long sides are formed by two wooden side planks (1), which enclose a longitudinal cavity (2), which is open at the other two opposite long sides of the beam, at least one installation pipe (3) is located in the longitudinal cavity (2), wherein the longitudinal cavity (2) of the beam is filled with an insulating polymer material with good adhesion to wood, wherein at both ends of the beam between the side planks (1), there is a wooden reinforcing element (4), one side of which together with the ends of the side planks (1) forms a short side of the beam. The longitudinal cavity (2) can be divided into chambers (12) by transverse struts (6).